#include<stdio.h>
void main()
{
    int x,y;
    x = -20,y = 3;
    printf("x = %d,y = %d\n",x,y);
    printf("x+y=%d\n",x+y);
    printf("x-y=%d\n",x-y);
    printf("x*y=%d\n",x*y);
    printf("x/y=%d\n",x/y);
    printf("x%%y=%d\n",x%y);
}